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Electrolysis or electrical hair removal

Electric hair removal, also called electrolysis, is the only permanent hair removal method recognized so far. Its operation is apparently simple, but it requires good technique to be effective and a great deal of patience.

It is a hair removal technique that uses electrical current, channeled through a needle, to destroy the hair follicle and disable its ability to create new hair.

Types of electrolysis

Galvanic electrolysis:

In galvanic electrolysis, a direct current (DC) is used through a needle that is inserted into the hair follicle. This current is transmitted to conductive elements such as salt and water in the hair follicle, producing a chemical reaction from which, among others, sodium hydroxide (caustic soda) is formed, causing the destruction of the hair follicle.


In thermolysis, a high-frequency alternating current (AC) is used to create an electromagnetic field through the needle. Said field stimulates the vibration of the water molecules in the hair follicle tissue, generating the heat necessary to destroy the hair follicle.

Mixed technique:

In the mixed technique, galvanic direct current and high-frequency alternating current from thermolysis are combined. The great advantage is that the heat produced by thermolysis affects the sodium hydroxide, which makes it much more effective and allows it to expand faster through the tissue.

Does it work with any skin tone and hair color?

Indeed, and this gives us the great advantage of being able to treat blonde, red and white hair that is not possible with other hair removal methods such as laser hair removal or IPL, as their effectiveness depends on the amount of pigment they carry.

The most effective treatment for hair removal

Electric hair removal is definitive, but it is essential that several sessions be carried out in order to permanently eliminate all hairs.

It should be borne in mind that electric hair removal is only effective when the hair is in the growth phase (anagen). Being practically ineffective when it is in the catagen or telogen phase.

There are other factors that do not play such an important role in other hair removal methods, but that do take on a special relevance in electrolysis. Among which are: the technique used, the hair removal device, the type of needles and a correct setting of the parameters.

Possible side effects

As with any other hair removal method, certain adverse skin reactions can occur. Most are temporary and are not serious, but if they appear, it is important that you notify us as soon as possible so that we have them under control at all times. We refer to redness or swelling of the treated area, hyperpigmentation, hypopigmentation and the appearance of small scabs or scars.

Who will assist you:

Eva Núñez

Cosmetology & Patient care

Susana Mateos